676472-10-9

Upstream product

• 676472-07-4 1-(2-{2-[2-(2-{2-[2-(2-acetyl-4-bromo-phenoxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-ethoxy}-5-bromo-phenyl)-ethanone 
• 1450-75-5 5-Bromo-2-hydroxyacetophenone 
• 41024-91-3 penta(ethylene glycol) bis(p-toluenesulfonate) 

Downstream Products

• 676472-13-2 C₂₈H₃₆Br₂O₁₀ 
• 676472-16-5 C₃₂H₄₂O₁₀ 

Relevant academic research and scientific papers

Synthesis and complexing properties of crownophanes possessing carboxyl group

A new series of crown compounds bearing two carboxyl groups (2a-c; crownophanedicarboxylic acids) were prepared via intramolecular [2 + 2] photocycloaddition of bis-styrene derivatives. In the liquid-liquid extraction, crownophanedicarboxylic acids (2a-c) showed a low affinity toward alkali metal cations, though both 2b and 2c showed an extraordinary high affinity toward zinc cation among heavy metal cations examined.